---
name: "Bio::DB::Expression"
section: "3pm"
platform: "linux"
package: "libbio-perl-perl"
version: "1.7.2-3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/Bio::DB::Expression"
---

# Bio::DB::Expression(3pm)

DESCRIPTION of Object

## NAME

Bio::DB::Expression - DESCRIPTION of Object

## SYNOPSIS

```
  use Bio::DB::Expression;
  my $db = Bio::DB::Expression->new( -source => 'geo' );
  my @platforms = $db->get_platforms();
  foreach my $platform ( @platforms ) {
    my @datasets = $platform->get_datasets();
    foreach my $dataset ( @datasets ) {
      my @samples = $dataset->get_samples();
      foreach my $sample ( @samples ) {
        #...
      }
    }
  }
```

## DESCRIPTION

Describe the object here

## FEEDBACK

### Mailing Lists

User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to the Bioperl mailing list.  Your participation is much appreciated.

```
  bioperl-l@bioperl.org                  - General discussion
  http://bioperl.org/wiki/Mailing_lists  - About the mailing lists
```

### Support

Please direct usage questions or support issues to the mailing list:

*bioperl-l@bioperl.org*

rather than to the module maintainer directly. Many experienced and  reponsive experts will be able look at the problem and quickly  address it. Please include a thorough description of the problem  with code and data examples if at all possible.

### Reporting Bugs

Report bugs to the Bioperl bug tracking system to help us keep track of the bugs and their resolution. Bug reports can be submitted via the web:

```
  https://github.com/bioperl/bioperl-live/issues
```

## AUTHOR - Allen Day

Email allenday@ucla.edu

## APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a \_

### *new()*

```
 Usage   : my $obj = Bio::DB::Expression->new();
 Function: Builds a new Bio::DB::Expression object
 Returns : an instance of Bio::DB::Expression
 Args    :
```

### *get\_platforms()*

```
 Usage   :
 Function:
 Example :
 Returns : a list of Bio::Expression::Platform objects
 Args    :
```

### *get\_samples()*

```
 Usage   :
 Function:
 Example :
 Returns : a list of Bio::Expression::Sample objects
 Args    :
```

### *get\_contacts()*

```
 Usage   :
 Function:
 Example :
 Returns : a list of Bio::Expression::Contact objects
 Args    :
```

### *get\_datasets()*

```
 Usage   :
 Function:
 Example :
 Returns : a list of Bio::Expression::DataSet objects
 Args    :
```

### \_load\_expression\_module

```
 Title   : _load_expression_module
 Usage   : *INTERNAL Bio::DB::Expression stuff*
 Function: Loads up (like use) a module at run time on demand
 Example :
 Returns :
 Args    :
```